Home / 89,782.70-123,899.63-49,496.31

Finding the Fourth Proportional to 89,782.70, 123,899.63 and 49,496.31

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Solution

The fourth proportional to 89,782.70, 123,899.63 and 49,496.31 is: 68,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,782.70 : 123,899.63 = 49,496.31 : x
  2. Step 2: Convert to fraction form
    89,782.70/123,899.63 = 49,496.31/x
  3. Step 3: Cross multiply
    89,782.70x = 123,899.63 × 49,496.31
  4. Step 4: Simplify right side
    89,782.70x = 6,132,574,247.88
  5. Step 5: Solve for x
    x = 6,132,574,247.88/89,782.70
  6. Step 6: Final answer
    x = 68,304.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.